Heating stove and furnace.



G. G. GAREY.

HEATING STOVE AND FURNACE.

APPLICATION FILED JUNE 22, i914.

Patented May 18, 1915.

2 SHEETS-SHEET I.

THE NOR RIS PETERS cO.. PHOTO-LITHQ. WASHINGTON. D, t

G. G. GAREY.

HEATING STOVE AND FURNACE.

APPUCATION EILED JUNE 22, 1914.

1,139,857 Patented May18,1915.

2 SHEETSSHEET 2- Attorneys GEORGE e. GARRY, or rNnrANAroLIs, INDIANA.

HEATING srovn AND FURNACE.

manner.

Specification of Letters Patent.

Patented Ma as, 1915.

Application filed June 22, 1914. Serial No. 846,632.

To (ZZZ whom it may concern:

Be it known thatI, Gnoncn G. GAREY, a citizen-of the United States, residing at Indianapolis, in the county of Marion and State of Indiana, have invented a new and useful Heating Stove and Furnace, of which the following is a specification.

Thisv invention relates to heating stoves and furnaces, and more particularly to, a novel form of fire pot and base whereby, when the heater utilizes a down draft for supporting combustion, the combustion pro.- ducts are directed through the wall of the fire pot and subsequently commingled with fresh warm air admitted to the base-and around theash pit where combustion islcom pleted and the walls of the base or; ash-pit thoroughly heated s0 asthus to add to theheating surface of the stove or furnace and, consequently, increase .its efiiciency. I

A further object is to provide a fire pot having a novel arrangement of air channels whereby the currents produced by the down draft through the fuel will be distributed to: the various air passages, said passages being so shaped as to prevent ashes and other products of combustion from lodging therein and thus interfering with the flow of gases from the fire pot. v v

A further object is to so arrange the outlets of the air passages relative to the fresh air inlets in the base as to cause a thorough commingling of the gases within thebase where final combustion will take place.

With the foregoing and other objects in view which will appear as the description proceeds, the. invention resides in the combination and arrangement of parts and in the details of construction hereinafter de-' scribed and claimed, it being understood that changes in the precise embodiment of the invention herein disclosed, can be made within the scope of what-is claimed, without departing from the spirit of the invention.

In the accompanying drawings the preferred form of theinvention has been shown.

In said drawings :Figure 1 is a central vertical section through the heater, the top being shown partlyin elevation. Fig. 2 is a section on line A-B Fig. 1. Fig. 3 is'a section on line CD Fig. 1. Fig. 4 is a vertical transverse section through a portion of the base. a J Referring to the figures by characters of reference, 1 designates the. supporting legs on. which is mounted an ash pit 2 having a smoke flue 3 extending upwardlytherefrom preferably at the rear thereof. The ash door 4: 1S arranged in front of the ash pit as ordinarily and extending across the back portion of the ash pit is a partition 5 while ada ditional partitions 6 eXtend within the side portions of the ash pit from the front there-- of to the ends of the cross partition 5. These s de partitionsfi have flanges 7 along the upperedges thereof which are inclinedupwardly and outwardly and thus constitute means for deflecting ashes into the space between thedoor 4 and the transverse partition 5. It will be noted also, by referring to Fig. 1, that the transverse partition 5 has an upper inclined portion 8, which however, extends up to the wall of the'ash. pit. The partitions cooperate with the walls'of the ash pit to form a fiue or supplemental combustion chamber 9 opening into the lower end of the'outlet fiue or smoke pipe 3.' An ash pan 10 may be removably mounted within the ash pit.

An annular air conduit or distributing flue 11 is formed in the top portion of the ash pit. 2 and extends around the fire pot 12. .Another air conduit or fiue 13 extends around the upper portion of the fire pot 12. The conduit 13 has an air inlet 14: adapted to be closed by a suitable damper 15, this inlet and damper being arranged preferably upon the front portion of the conduit 13. The lower air fiueor conduit 11 has an air inlet opening 16 adapted tobe partly or entirely closed by a damper 17. Air ports 18 are formed in the inner wall of the conduit 11 and addi tional air ports 19 are formed in the inner wall of the conduit 13. i i

The fire pot 12 fits snugly upon thetop of the ash pit and is tapered downwardly,

.theifire pot being provided upon its outer I face, with hollow ribs 21 forming air fiues; Longitudinal slots 22 are formed in the wall of the fire pot and open into the respective flues- 21, these slots extending from the upper edge of the fireypot and down to points spaced from the grate 23 supported within the lower portionof the fire pot. Each "slot 1 22 is gradually widened at its lower end,as

shown at24, thewidth of the lower end of each widened portion being substantially equal to the width of the air passage or flue with which it communicates. -The" fiues'21 do not terminate at the lower ends of the.

slots but continue downwardly 36 the;

lower edge of the fire pot 12, that portion of each flue 21 between the slot 22 and the lower edge of the fire pot being gradually widened downwardly, as indicated by'dotted lines at 25in Fig.1, Furthermore as indi- V cated iii-said figure" the fire pot projects downwardly into the top ofthe ash. p111,

,said fire pot being supported in'such position by frictional engagement of the lines 21. withthe upper surface of theas'h pit. The

lower vorjoutlet ends of the fiues 21 are cut 2 7 off, or substantially beveled so as to extend from the top of the ash pit downwardly and inwardly tothe flower edge of the fire pot,

thus forming substantially arched openings 26 at the lower ends of the 'fiues 21. These openings 26fare disposed directly opposite the ports 18 so that any products of 'com- H bustion passing downwardly through the outlets 26 will promptly commingle with air discharged through the ports 18 into the space between the flueor conduit 11 and the V a depending portion 27 of the fire pot. .Ribs

128 are formediupon the inner surface of the fire pot 12-.between the upper portions of the slots'*22, these ribs having downwardly and ,inwardlyinclined upperfaces and conupper ends'of the ribs 28, fuelrashes, etci,

stituting means; for preventing fuel from packing into the slots 22. Byincliningthe will-notbecome lodged thereon.

The'grate 23 can be of any desired form but is preferably of the close-up type having a central opening 29 adapted to be closed by a slide 30,.the grate being dished. and

adjustable for use either with an up-draftjor a down-draft, it obviously being desirable to open the gr atewhen used with an updragt'and to close it when a down-,draft'is "use Mounted on the fire pot 12 is casing section 31 supporting the top section 32 which may be provided 'with the iusual domeshaped cover-33 extending over a feed hopper 34:, An outlet flue extends from the top porticnof the heater and opens intothe up wardly e'xtending flue 3, there being a damper 36, of'any suitable form whereby the flue 35 can be closed while the downdraft is being used.- V f; l

krranged withinthe upper portion of the I casing section 31 is a diaphragm 37, having marginal flanges 38 bolted or otherwise se.-- cured .to the heater casing and; said .dia-r S l phragm, which is preferably frusto-conical,"

' has recesses 39 out intothe marginal portion thereof whereby'outletopenings are formed" between the diaphragm andcthe wall of the heater casing through which products of combustion are free to'flow while, an up draft is beingfused By providing these out? 1 let openings at the pointsindicated'and as shown part-icularlyin Fig 3, the products of combustion ascending within the heater;

through the outlet-39 to the flue 35. certain percentag'e'of air will be admitted to the fuel by way ofthe flues21 and the slots 22, thus causing as complete combuswill travel close to the wall of the casing and thus raise the temperature of the wall to a higher degree than would otherwise be the'case, The bottom of the diaphragm 37 has an opening 40 adapted to be closed by a slide 41 which can be actuated by means of a rod 42 extending through the heater 1 casing. This grod as well as the slide is p vention but has been described and claimed in detail in a copending application filed by me on February 24, 1913, Serial No. 750,378.

- The-heater herein described can be used both as an up-draft heater and as a down draft heater. then used in connection with not constituterany part of the present in- V an upedraft,'the grate 23, which, as hereinbefore stated, can beof any preferred construction, is regulated so as to allow air to flow therethrough and upwardly through the fuel, thus causing the products of combustion'to circulate. along the inner surface of the wallof the heater casing and thenip tion of the fuel'close to the wall of the fire pot as takes place at the center of the fire pot; However, 'thex'present improvementsreside primarily in those features which enable a down-draft to be used elficiently.

In "using the down-draft the grate 23 is closed and the damper 36 is likewise closed. The inlets '14 and 16 areopened and the fuel ignited withinthe fire pot 12; Combustion ice is.supportedrprimarily byair admittedto the fuel through fines 4C5 formed along thewall of the magazine, these fiues having inlets at any suitable points and which have not been shown. The current of air passing downwardly through the fuel will split and move into the slots '22, the larger lower ends of the slots indicated at 2i, serving'to draw the' and combustion products downwardly toward the lower :ends of the slots where said products will enter "the fiues 21. A certain amount of fresh air will enter the r20 1 fuel by way'of the conduitfll3, ports 19 and the upper portions of the slots 22 thus sup- 1 porting: combustion close to the wall ofthe fire pot. I /Vhen theproducts of combustion isslcle from I the" arched openings 26, they mix with, the fresh air admitted through the ports 18, this mixture flowing vdownwardly into the combustion'flue 9 where combustion iscompleted, the uneons'umed products'then passing-out,th eughithe'fiue j Importance isattached to the fact that the lower end portions of the fines 21 are widened downwardly so that any ashes which may be carried in the fiues will not become lodged therein but will gravitate into the ash pit.

What is claimed is V 1. The combination with an ash pit hav ing an air conduit at the top thereof, said conduit being provided with an air inlet in its outer wall and air outlets in its inner wall, of a fire pot bearing downwardly on the ash pit and projecting thereinto, ribs upon the outer surface of the fire pot and forming air fiues discharging into the space between the conduit and that portion of the fire pot projecting. intothe ash pit, and a grate supported within the fire pot said fire pot having slots in the upper portion of the wall thereof and communicating with the respective flues thereby to direct gases into the upper portion of the fire pot and on top of the fuel contained within the fire pot, said slots terminating at points above and, spaced from the grate,,the lower endsof the slots being widened downwardly, the greatest width of each slot being equal to the width of the interior of the fiue with which it communicates.

2. The combination with an ash pit having an air conduit at the top thereof, said conduit being provided with an air inlet in its outer wall and air outlets in its inner wall, of a fire pot bearing downwardly on the ash pit and projecting thereinto, ribs upon the outer surface of the fire pot and forming air fiues discharging into the space between the conduit and that portion of the fire pot projecting. into the ash pit, and a grate supported within the fire pot, said fire pot having slots in the wall thereof and communicating with the respective flues, said slots terminating at points above and spaced from the grate,.the lower ends of the slots being widened downwardly, those portions:

of the fines below the slots being. gradually enlarged downwardly.

3. In a heating stove the combination with an ash pit and an air conduit at the top thereof and provided with an inlet in the outer wall thereof and outlets in its inner wall, of a fire pot bearing upon the ash pit and extending downwardly thereinto, said fire pot having air flues on the outside there of, said fiues discharging into the space between the lower portions of the fire pot and the apertured wall of the conduit, a conash pit and a conduit at the top thereof and discharging into the ash pit, said conduit having a valved air inlet, of a fire pot supported by the ash pit and projecting downwardly thereinto, ribs upon the outer side of the fire pot and forming air flues discharging into the space between the conduit and the lower end portion of the fire pot, openings in the wall of the fire pot and discharging into the respective flues, an outlet fiue extending from the ash pit, a transverse partition extending across the inlet of said outlet flue, and side partitions extending from the ends of the transverse partition and forwardly within the ash pit, said partitions and the walls of the ash pit cooperating to form a combustion chamber for the reception of gases mixed between the conduit and the lower ends of the lines on the fire pot.

5. In a heater, a fire pot formed in a single casting and having exterior ribs extending from the upper to the lower edge thereof and provided with air flues therein, there being a conduit discharging into the upper end portions of the fines, said flues being open at their lower ends, there being slots 1 in the wall of the fire pot and opening into the respective fiues, said slots extending longitudinally of the fiues and having their lower end portions gradually widened to the width of the'fiues, those portions of the lines below the slots being gradually widened downwardly toward their open ends.

In testimony that I claim the foregoing as my own, I have hereto affixedmy signature in the presence of two witnesses.

W. M; BREZETTE, D. E. CARPENTER.

Copies of this patent may be obtained for five cents each, by addressing the "Commissioner of Patents, Washington, D. G. 

